Threat Database Backdoors Backdoor.Qakbot.A

Backdoor.Qakbot.A

By CagedTech in Backdoors
Published:
Last updated:

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 16
First Seen: July 24, 2009
Last Seen: October 24, 2025
OS(es) Affected: Windows

The detection of Backdoor.Qakbot.A on your system indicates a potential security threat that requires immediate attention. This backdoor threat can compromise your system's security and allow unauthorized access to your data. It is essential to understand the nature of this threat and take prompt action to remove it from your system.

What Is Backdoor.Qakbot.A?

Backdoor.Qakbot.A is a type of malware that creates a backdoor on an infected system, allowing hackers to access and control the system remotely. This type of threat can be particularly dangerous, as it can lead to unauthorized data theft, system compromise, and even distribution of additional malware. The name Backdoor.Qakbot.A suggests that it may be related to the Qakbot malware family, but the exact nature and behavior of this specific threat can vary.

How Backdoor.Qakbot.A Operates

Backdoor.Qakbot.A, like other backdoor threats, operates by creating a secret doorway into an infected system. This allows hackers to access the system without being detected, often by exploiting vulnerabilities in software or using social engineering tactics to trick users into installing the malware. Once installed, the malware can communicate with its command and control servers, receiving instructions and transmitting stolen data. The malware can also spread to other systems, either through network connections or by infecting removable drives.

Symptoms of Infection

Systems infected with Backdoor.Qakbot.A may exhibit a range of symptoms, including unusual network activity, slow system performance, and unexplained changes to system settings. Users may also notice suspicious programs or processes running in the background, or experience unexpected system crashes. However, in many cases, the malware can operate without noticeable symptoms, making it difficult to detect without the use of specialized security software.

  • Unusual network activity, such as unexpected outgoing connections
  • Slow system performance or freezes
  • Unexplained changes to system settings or files
  • Suspicious programs or processes running in the background
  • Unexpected system crashes or errors

How to Remove Backdoor.Qakbot.A

  1. Boot your system in Safe Mode with Networking to prevent the malware from loading and to allow for easier removal
  2. Use a reputable anti-malware tool, such as SpyHunter, to perform a full scan of your system and detect any malware components
  3. Uninstall any suspicious programs or applications that may be related to the malware
  4. Reset your web browsers, including Chrome, Firefox, and Edge, to their default settings to remove any malicious extensions or settings
  5. Reboot your system and perform a follow-up scan to ensure that all malware components have been removed

Conclusion

Removing Backdoor.Qakbot.A from your system requires careful attention to detail and a thorough understanding of the malware's behavior. By following the steps outlined above and using reputable security software, you can help protect your system and data from this and other types of malware. It is essential to remain vigilant and take proactive steps to prevent future infections, including keeping your operating system and software up to date, using strong antivirus software, and avoiding suspicious downloads and email attachments.

Aliases

13 security vendors flagged this file as malicious.

Antivirus Vendor Detection
TrendMicro TROJ_QAKBOT.SMG
Symantec Suspicious.Insight
Sunbelt Backdoor.Win32.Qakbot.gen.A (v)
Comodo Heur.Packed.Unknown
TrendMicro PAK_Generic.001
Symantec W32.Qakbot
Sunbelt Trojan.Qbot.B
Microsoft Backdoor:Win32/Qakbot.gen!A
Ikarus Backdoor.Win32.Qakbot
eSafe Suspicious File
CAT-QuickHeal Win32.Backdoor.Phdet.gen!A.3
Authentium W32/Heuristic-KPP!Eldorado
a-squared Backdoor.Win32.Qakbot!IK

SpyHunter Detects & Remove Backdoor.Qakbot.A

File System Details

Backdoor.Qakbot.A may create the following file(s):
# File Name MD5 Detections
1. logmeinsystray.exe 098161dcf67932e85abbb9342ed88b67 0
2. winesm32.exe 40db23e479eaa1240d3d6c01cdb867d7 0